NANOFIBRE MEMBRANE LAYER FOR WATER AND AIR FILTRATION

摘要

The invention relates to a nanofibre membrane layer having a basis weight of 0.01 -50 g/m2 and a porosity of 60-95 %, comprising a nanoweb made of polymeric nanofibres with a number average diameter in the range of 50-600 nm, consisting of a polymer composition comprising a semicrystalline polyamide having a C/N ratio of at most 5.5. The invention also relates to water and air filtration devices comprising such a nanofibre membrane layer.